Vibrational Frequencies calculated at PBEPBEultrafine/6-31G(2df,p)
Mode Number |
Symmetry |
Frequency (cm-1) |
Scaled Frequency (cm-1) |
IR Intensities (km mol-1) |
Raman Act (Å4/u) |
Dep P |
Dep U |
1 |
A' |
3789 |
3750 |
66.54 |
80.45 |
0.27 |
0.42 |
2 |
A' |
2195 |
2173 |
93.05 |
93.98 |
0.25 |
0.40 |
3 |
A' |
2140 |
2118 |
87.22 |
150.06 |
0.08 |
0.14 |
4 |
A' |
973 |
963 |
126.91 |
3.62 |
0.58 |
0.74 |
5 |
A' |
937 |
928 |
95.73 |
9.12 |
0.73 |
0.85 |
6 |
A' |
904 |
895 |
55.49 |
12.26 |
0.70 |
0.82 |
7 |
A' |
824 |
815 |
116.22 |
7.96 |
0.18 |
0.31 |
8 |
A' |
669 |
662 |
54.75 |
4.59 |
0.62 |
0.77 |
9 |
A" |
2136 |
2114 |
158.69 |
57.70 |
0.75 |
0.86 |
10 |
A" |
908 |
899 |
57.93 |
12.79 |
0.75 |
0.86 |
11 |
A" |
686 |
679 |
53.20 |
8.42 |
0.75 |
0.86 |
12 |
A" |
218 |
216 |
92.12 |
1.72 |
0.75 |
0.86 |
Unscaled Zero Point Vibrational Energy (zpe) 8190.1 cm
-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 8105.7 cm
-1
See section
III.C.1 List or set vibrational scaling factors
to change the scale factors used here.
See section
III.C.2
Calculate a vibrational scaling factor for a given set of molecules
to determine the least squares best scaling factor.
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G(2df,p)
Charges (e)
Number |
Element |
Mulliken |
CHELPG |
AIM |
ESP |
1 |
Si |
0.045 |
|
|
|
2 |
O |
-0.387 |
|
|
|
3 |
H |
0.027 |
|
|
|
4 |
H |
0.006 |
|
|
|
5 |
H |
0.006 |
|
|
|
6 |
H |
0.305 |
|
|
|
Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section
VII.A.3)
|
x |
y |
z |
Total |
|
-1.305 |
0.243 |
0.000 |
1.327 |
CHELPG |
|
|
|
|
AIM |
|
|
|
|
ESP |
|
|
|
|
Electric Quadrupole moment
Quadrupole components in D Å
Primitive |
| x | y | z |
x |
-19.666 |
-2.755 |
0.000 |
y |
-2.755 |
-19.962 |
0.000 |
z |
0.000 |
0.000 |
-21.612 |
|
Traceless |
| x | y | z |
x |
1.121 |
-2.755 |
0.000 |
y |
-2.755 |
0.678 |
0.000 |
z |
0.000 |
0.000 |
-1.799 |
|
Polar |
3z2-r2 | -3.597 |
x2-y2 | 0.296 |
xy | -2.755 |
xz | 0.000 |
yz | 0.000 |
|
Polarizabilities
Components of the polarizability tensor.
Units are
Å
3 (Angstrom cubed)
Change units.
|
x |
y |
z |
x |
4.210 |
-0.113 |
0.000 |
y |
-0.113 |
4.241 |
0.000 |
z |
0.000 |
0.000 |
4.030 |
<r2> (average value of r
2) Å
2
<r2> |
39.316 |
(<r2>)1/2 |
6.270 |